.categray_wrap{
    width:100%;
    height: 100%;
    overflow: auto;
    background:#fff;
    position: absolute;
    top:0;
    left:0;
    z-index:99;
    color:#fff;
}
.con{
    width:100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    div{
        width:104px;
        height: 104px;
        margin-bottom:4px;
        img{
            width:100%;
            height: 100%;
        }
    } 
}